<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        nav {
            height: 40px;
            background: #333;
        }

        .box {
            width: 1226px;
            margin: auto;
        }

        .box .pik {
            height: 100px;
            background: pink;
        }

        .row div:first-child {
            width: 234px;
            background: orange;
            height: 460px;
            float: left;
        }

        .row div:last-child {
            width: 992px;
            height: 460px;
            background: skyblue;
            float: left;
        }
    </style>
</head>

<body>
    <nav></nav>
    <!--  -->
    <div class="box">
        <div class="pik"></div>
        <div class="row">
            <div></div>
            <div></div>
        </div>

    </div>
</body>

</html>